Amir Locke's mom pushes for end to 'no knock' warrants after cop not charged in son's death

Amir Locke's mother sounded off against the laws that permit "no knock" warrants after prosecutors decided not to charge the officer who shot her son.

Amir Locke's mother said she doesn't want her son's death to be in vain and is calling on lawmakers to reform one of the most controversial police tactics.

Karen Wells spoke with ABC News Live's Stephanie Ramos Wednesday, just hours after Minnesota prosecutors announced they wouldn't charge the officer who shot Locke during a "no knock" warrant in February.

Locke, 22, wasn't under investigation for the Saint Paul case which led to the warrant, investigators said.

Wells told ABC News that such warrants, which allow law enforcement members to enter someone's home without announcing their presence, should be banned from Minnesota.